About Us2019-01-24T08:10:05+00:00

About Sir Auto Glass


We perform windshield auto glass repairs and replacements using Original Equipment Quality Auto Glass and Urethane. Now don’t get confused here. This means that we use OEM manufacturers but it does not mean it is OEM Glass. See our resources page for more details on that. Suffice it to say, however, that we do use high quality glass and urethane.


We perform craftsman quality MOBILE Auto Glass Repairs and Replacements using Original Equipment Quality Auto Glass and Urethane.

Best of all, we offer a Lifetime Warranty against defects in the glass, leaks, & stress fractures.

We can repair or replace any of the following types of auto glass:

  • Windshield

  • Door Glass

  • Quarter Glass

  • Vent Glass

  • Back Glass

We will come to your home, work, aunt’s, uncle’s, sibling’s or even your in-laws ? for no extra charge!

Lastly, we work with all INSURANCE companies and we can WAIVE full and partial deductibles up to $100.


Established in 2013.

SIR Glass was started with the ambition to become Portland’s finest auto glass company. Not to squash the competition but to perhaps raise the standards. Quality, customer service, and trustworthiness are impeccable and yet diminishing characteristics of businesses today. And while we do not proclaim perfection, we do strive to serve our friends well. We want you to feel comfortable with us, like we’re old buddies. But most importantly, we want you to drive away with a windshield installation that’s as safe as when your car rolled out of the factory. And we kind of want you to like us too :-).

“Highly recommend working with Sean at SIR GLASS. He fixed our window same-day, in the dark, and it was freezing. He was super friendly and professional. On a day where he was the ONLY glass repair shop that answered the phone, he was a real lifesaver!”

-Megan B. Of Portland, OR

Meet the Business Owner

After spending 8 years in the US Navy as a Nuclear Operator on an Aircraft Carrier and as a Quality Assurance Inspector in San Diego, Shaun dove into the auto glass industry, eventually launching his own company. His time in the Navy and a self guided business education groomed him for becoming an entrepreneur. Seeing the need for better quality windshield repairs and replacements and the ability to provide for his new wife and children, he decided the only thing he should do was start his own company. His background in mechanical work with the rigid Nuclear Quality Assurance Program has given him a special eye for detail as well as an acute painful awareness of the rampant lack of quality in such a simple industry. There’s really only 4 steps: Remove, Treat, Apply, Install. What’s so difficult about doing those few steps correctly?

With his wife and their 5 children they enjoy boating, reading, and exploring. You can find them Sunday mornings at Saving Grace Church in Milwaukie, OR.

Shaun Dewitt
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